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*
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* NUGET: END LICENSE TEXT */
/*!
** Unobtrusive validation support library for jQuery and jQuery Validate
** Copyright (C) Microsoft Corporation. All rights reserved.
*/
/*jslint white: true, browser: true, onevar: true, undef: true, nomen: true, eqeqeq: true, plusplus: true, bitwise: true, regexp: true, newcap: true, immed: true, strict: false */
/*global document: false, jQuery: false */
(function($) {
    var $jQval = $.validator,
        adapters,
        data_validation = "unobtrusiveValidation";

    function setValidationValues(options, ruleName, value) {
        options.rules[ruleName] = value;
        if (options.message) {
            options.messages[ruleName] = options.message;
        }
    }

    function splitAndTrim(value) {
        return value.replace(/^\s+|\s+$/g, "").split(/\s*,\s*/g);
    }

    function escapeAttributeValue(value) {
// As mentioned on http://api.jquery.com/category/selectors/
        return value.replace(/([!"#$%&'()*+,./:;<=>?@\[\\\]^`{|}~])/g, "\\$1");
    }

    function getModelPrefix(fieldName) {
        return fieldName.substr(0, fieldName.lastIndexOf(".") + 1);
    }

    function appendModelPrefix(value, prefix) {
        if (value.indexOf("*.") === 0) {
            value = value.replace("*.", prefix);
        }
        return value;
    }

    function onError(error, inputElement) { // 'this' is the form element
        var container = $(this).find("[data-valmsg-for='" + escapeAttributeValue(inputElement[0].name) + "']"),
            replaceAttrValue = container.attr("data-valmsg-replace"),
            replace = replaceAttrValue ? $.parseJSON(replaceAttrValue) !== false : null;
        container.removeClass("field-validation-valid").addClass("field-validation-error");
        error.data("unobtrusiveContainer", container);
        if (replace) {
            container.empty();
            error.removeClass("input-validation-error").appendTo(container);
        } else {
            error.hide();
        }
    }

    function onErrors(event, validator) { // 'this' is the form element
        var container = $(this).find("[data-valmsg-summary=true]"),
            list = container.find("ul");
        if (list && list.length && validator.errorList.length) {
            list.empty();
            container.addClass("validation-summary-errors").removeClass("validation-summary-valid");
            $.each(validator.errorList, function() {
                $("<li />").html(this.message).appendTo(list);
            });
        }
    }

    function onSuccess(error) { // 'this' is the form element
        var container = error.data("unobtrusiveContainer"),
            replaceAttrValue = container.attr("data-valmsg-replace"),
            replace = replaceAttrValue ? $.parseJSON(replaceAttrValue) : null;
        if (container) {
            container.addClass("field-validation-valid").removeClass("field-validation-error");
            error.removeData("unobtrusiveContainer");
            if (replace) {
                container.empty();
            }
        }
    }

    function onReset(event) { // 'this' is the form element
        var $form = $(this);
        $form.data("validator").resetForm();
        $form.find(".validation-summary-errors")
            .addClass("validation-summary-valid")
            .removeClass("validation-summary-errors");
        $form.find(".field-validation-error")
            .addClass("field-validation-valid")
            .removeClass("field-validation-error")
            .removeData("unobtrusiveContainer")
            .find("* > *")  // If we were using valmsg-replace, get the underlying error
            .removeData("unobtrusiveContainer");
    }

    function validationInfo(form) {
        var $form = $(form),
            result = $form.data(data_validation),
            onResetProxy = $.proxy(onReset, form);
        if (!result) {
            result = {
                options: {
// options structure passed to jQuery Validate's validate() method
                    errorClass: "input-validation-error",
                    errorElement: "span",
                    errorPlacement: $.proxy(onError, form),
                    invalidHandler: $.proxy(onErrors, form),
                    messages: {},
                    rules: {},
                    success: $.proxy(onSuccess, form)
                },
                attachValidation: function() {
                    $form
                        .unbind("reset." + data_validation, onResetProxy)
                        .bind("reset." + data_validation, onResetProxy)
                        .validate(this.options);
                },
                validate: function() { // a validation function that is called by unobtrusive Ajax
                    $form.validate();
                    return $form.valid();
                }
            };
            $form.data(data_validation, result);
        }
        return result;
    }

    $jQval.unobtrusive = {
        adapters: [],
        parseElement: function(element, skipAttach) {
            /// <summary>
            ///     Parses a single HTML element for unobtrusive validation attributes.
            /// </summary>
            /// <param name="element" domElement="true">The HTML element to be parsed.</param>
            /// <param name="skipAttach" type="Boolean">
            ///     [Optional] true to skip attaching the
            ///     validation to the form. If parsing just this single element, you should specify true.
            ///     If parsing several elements, you should specify false, and manually attach the validation
            ///     to the form when you are finished. The default is false.
            /// </param>
            var $element = $(element),
                form = $element.parents("form")[0],
                valInfo, rules, messages;
            if (!form) { // Cannot do client-side validation without a form
                return;
            }
            valInfo = validationInfo(form);
            valInfo.options.rules[element.name] = rules = {};
            valInfo.options.messages[element.name] = messages = {};
            $.each(this.adapters, function() {
                var prefix = "data-val-" + this.name,
                    message = $element.attr(prefix),
                    paramValues = {};
                if (message !== undefined) { // Compare against undefined, because an empty message is legal (and falsy)
                    prefix += "-";
                    $.each(this.params, function() {
                        paramValues[this] = $element.attr(prefix + this);
                    });
                    this.adapt({
                        element: element,
                        form: form,
                        message: message,
                        params: paramValues,
                        rules: rules,
                        messages: messages
                    });
                }
            });
            $.extend(rules, { "__dummy__": true });
            if (!skipAttach) {
                valInfo.attachValidation();
            }
        },
        parse: function(selector) {
            /// <summary>
            ///     Parses all the HTML elements in the specified selector. It looks for input elements decorated
            ///     with the [data-val=true] attribute value and enables validation according to the data-val-*
            ///     attribute values.
            /// </summary>
            /// <param name="selector" type="String">Any valid jQuery selector.</param>
            var $forms = $(selector)
                .parents("form")
                .andSelf()
                .add($(selector).find("form"))
                .filter("form");
// :input is a psuedoselector provided by jQuery which selects input and input-like elements
// combining :input with other selectors significantly decreases performance.
            $(selector).find(":input").filter("[data-val=true]").each(function() {
                $jQval.unobtrusive.parseElement(this, true);
            });
            $forms.each(function() {
                var info = validationInfo(this);
                if (info) {
                    info.attachValidation();
                }
            });
        }
    };
    adapters = $jQval.unobtrusive.adapters;
    adapters.add = function(adapterName, params, fn) {
        /// <summary>Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation.</summary>
        /// <param name="adapterName" type="String">
        ///     The name of the adapter to be added. This matches the name used
        ///     in the data-val-nnnn HTML attribute (where nnnn is the adapter name).
        /// </param>
        /// <param name="params" type="Array" optional="true">
        ///     [Optional] An array of parameter names (strings) that will
        ///     be extracted from the data-val-nnnn-mmmm HTML attributes (where nnnn is the adapter name, and
        ///     mmmm is the parameter name).
        /// </param>
        /// <param name="fn" type="Function">
        ///     The function to call, which adapts the values from the HTML
        ///     attributes into jQuery Validate rules and/or messages.
        /// </param>
        /// <returns type="jQuery.validator.unobtrusive.adapters" />
        if (!fn) { // Called with no params, just a function
            fn = params;
            params = [];
        }
        this.push({ name: adapterName, params: params, adapt: fn });
        return this;
    };
    adapters.addBool = function(adapterName, ruleName) {
        /// <summary>
        ///     Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation, where
        ///     the jQuery Validate validation rule has no parameter values.
        /// </summary>
        /// <param name="adapterName" type="String">
        ///     The name of the adapter to be added. This matches the name used
        ///     in the data-val-nnnn HTML attribute (where nnnn is the adapter name).
        /// </param>
        /// <param name="ruleName" type="String" optional="true">
        ///     [Optional] The name of the jQuery Validate rule. If not provided, the value
        ///     of adapterName will be used instead.
        /// </param>
        /// <returns type="jQuery.validator.unobtrusive.adapters" />
        return this.add(adapterName, function(options) {
            setValidationValues(options, ruleName || adapterName, true);
        });
    };
    adapters.addMinMax = function(adapterName, minRuleName, maxRuleName, minMaxRuleName, minAttribute, maxAttribute) {
        /// <summary>
        ///     Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation, where
        ///     the jQuery Validate validation has three potential rules (one for min-only, one for max-only, and
        ///     one for min-and-max). The HTML parameters are expected to be named -min and -max.
        /// </summary>
        /// <param name="adapterName" type="String">
        ///     The name of the adapter to be added. This matches the name used
        ///     in the data-val-nnnn HTML attribute (where nnnn is the adapter name).
        /// </param>
        /// <param name="minRuleName" type="String">
        ///     The name of the jQuery Validate rule to be used when you only
        ///     have a minimum value.
        /// </param>
        /// <param name="maxRuleName" type="String">
        ///     The name of the jQuery Validate rule to be used when you only
        ///     have a maximum value.
        /// </param>
        /// <param name="minMaxRuleName" type="String">
        ///     The name of the jQuery Validate rule to be used when you
        ///     have both a minimum and maximum value.
        /// </param>
        /// <param name="minAttribute" type="String" optional="true">
        ///     [Optional] The name of the HTML attribute that
        ///     contains the minimum value. The default is "min".
        /// </param>
        /// <param name="maxAttribute" type="String" optional="true">
        ///     [Optional] The name of the HTML attribute that
        ///     contains the maximum value. The default is "max".
        /// </param>
        /// <returns type="jQuery.validator.unobtrusive.adapters" />
        return this.add(adapterName, [minAttribute || "min", maxAttribute || "max"], function(options) {
            var min = options.params.min,
                max = options.params.max;
            if (min && max) {
                setValidationValues(options, minMaxRuleName, [min, max]);
            } else if (min) {
                setValidationValues(options, minRuleName, min);
            } else if (max) {
                setValidationValues(options, maxRuleName, max);
            }
        });
    };
    adapters.addSingleVal = function(adapterName, attribute, ruleName) {
        /// <summary>
        ///     Adds a new adapter to convert unobtrusive HTML into a jQuery Validate validation, where
        ///     the jQuery Validate validation rule has a single value.
        /// </summary>
        /// <param name="adapterName" type="String">
        ///     The name of the adapter to be added. This matches the name used
        ///     in the data-val-nnnn HTML attribute(where nnnn is the adapter name).
        /// </param>
        /// <param name="attribute" type="String">
        ///     [Optional] The name of the HTML attribute that contains the value.
        ///     The default is "val".
        /// </param>
        /// <param name="ruleName" type="String" optional="true">
        ///     [Optional] The name of the jQuery Validate rule. If not provided, the value
        ///     of adapterName will be used instead.
        /// </param>
        /// <returns type="jQuery.validator.unobtrusive.adapters" />
        return this.add(adapterName, [attribute || "val"], function(options) {
            setValidationValues(options, ruleName || adapterName, options.params[attribute]);
        });
    };
    $jQval.addMethod("__dummy__", function(value, element, params) {
        return true;
    });
    $jQval.addMethod("regex", function(value, element, params) {
        var match;
        if (this.optional(element)) {
            return true;
        }
        match = new RegExp(params).exec(value);
        return (match && (match.index === 0) && (match[0].length === value.length));
    });
    $jQval.addMethod("nonalphamin", function(value, element, nonalphamin) {
        var match;
        if (nonalphamin) {
            match = value.match(/\W/g);
            match = match && match.length >= nonalphamin;
        }
        return match;
    });
    if ($jQval.methods.extension) {
        adapters.addSingleVal("accept", "mimtype");
        adapters.addSingleVal("extension", "extension");
    } else {
// for backward compatibility, when the 'extension' validation method does not exist, such as with versions
// of JQuery Validation plugin prior to 1.10, we should use the 'accept' method for
// validating the extension, and ignore mime-type validations as they are not supported.
        adapters.addSingleVal("extension", "extension", "accept");
    }
    adapters.addSingleVal("regex", "pattern");
    adapters.addBool("creditcard").addBool("date").addBool("digits").addBool("email").addBool("number").addBool("url");
    adapters.addMinMax("length", "minlength", "maxlength", "rangelength").addMinMax("range", "min", "max", "range");
    adapters.add("equalto", ["other"], function(options) {
        var prefix = getModelPrefix(options.element.name),
            other = options.params.other,
            fullOtherName = appendModelPrefix(other, prefix),
            element = $(options.form).find(":input").filter("[name='" + escapeAttributeValue(fullOtherName) + "']")[0];
        setValidationValues(options, "equalTo", element);
    });
    adapters.add("required", function(options) {
// jQuery Validate equates "required" with "mandatory" for checkbox elements
        if (options.element.tagName.toUpperCase() !== "INPUT" || options.element.type.toUpperCase() !== "CHECKBOX") {
            setValidationValues(options, "required", true);
        }
    });
    adapters.add("remote", ["url", "type", "additionalfields"], function(options) {
        var value = {
            url: options.params.url,
            type: options.params.type || "GET",
            data: {}
        },
            prefix = getModelPrefix(options.element.name);
        $.each(splitAndTrim(options.params.additionalfields || options.element.name), function(i, fieldName) {
            var paramName = appendModelPrefix(fieldName, prefix);
            value.data[paramName] = function() {
                return $(options.form).find(":input").filter("[name='" + escapeAttributeValue(paramName) + "']").val();
            };
        });
        setValidationValues(options, "remote", value);
    });
    adapters.add("password", ["min", "nonalphamin", "regex"], function(options) {
        if (options.params.min) {
            setValidationValues(options, "minlength", options.params.min);
        }
        if (options.params.nonalphamin) {
            setValidationValues(options, "nonalphamin", options.params.nonalphamin);
        }
        if (options.params.regex) {
            setValidationValues(options, "regex", options.params.regex);
        }
    });
    $(function() {
        $jQval.unobtrusive.parse(document);
    });
}(jQuery));